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Finding the Fourth Proportional to 29,900.80, 44,802.60 and 18,787.60

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Solution

The fourth proportional to 29,900.80, 44,802.60 and 18,787.60 is: 28,150.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,900.80 : 44,802.60 = 18,787.60 : x
  2. Step 2: Convert to fraction form
    29,900.80/44,802.60 = 18,787.60/x
  3. Step 3: Cross multiply
    29,900.80x = 44,802.60 × 18,787.60
  4. Step 4: Simplify right side
    29,900.80x = 841,733,327.76
  5. Step 5: Solve for x
    x = 841,733,327.76/29,900.80
  6. Step 6: Final answer
    x = 28,150.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.